For a couple interested in exploring a threesome, finding the right third person can be harder than expected. It is not simply about finding someone attractive. You are looking for a person whose interests, expectations, and relationship style fit comfortably with both partners.
A unicorn is generally a single person who is open to dating or becoming intimate with an established couple. Some are interested in a casual experience, while others may be open to an ongoing relationship. The right arrangement is different for everyone.
3Somer gives couples and singles a place to meet people who are already interested in threesomes, couples dating, and consensual non-monogamy. If you want to find a unicorn in Massachusetts, you can be more upfront about what you are looking for from the beginning.
Finding a Unicorn in Massachusetts
Massachusetts has a substantial dating population to explore. The U.S. Census Bureau estimates that 7,154,084 people lived in Massachusetts as of July 1, 2025, up from 7,138,560 the previous year.
The state also has several sizable population centers. The 2025 estimates put Boston at about 673,000 residents, Worcester at about 214,000, and Springfield at about 155,000.
Of course, population size does not tell us how many people are interested in three-way dating. There is no reliable statistic showing how many unicorns live in Massachusetts, and we should not pretend there is.
What we can say is that consensual non-monogamy is part of the broader dating landscape. Research using two U.S. samples of single adults found that roughly one in five participants reported having engaged in consensual non-monogamy at some point in their lives.
For couples, the practical takeaway is simple: instead of guessing whether someone is interested, it makes sense to meet people who have already expressed an interest in this type of connection.
What Makes a Good Unicorn Match?
Physical attraction is only one part of the equation.
Before meeting someone, couples should be honest with each other about what they want. Maybe you are interested in a one-time threesome. Maybe you would consider seeing the same person again. Or perhaps you are open to something that develops naturally without deciding in advance what it has to become.
The third person should have the same freedom to define their experience.
If you are a unicorn, you can ask the couple what they are looking for, whether both partners are genuinely interested, and what kind of relationship they have in mind. You are not joining someone else's relationship simply to fill a role. Your preferences and boundaries matter too.
That mutual respect is what separates a promising connection from an uncomfortable arrangement.
Dating a Couple as a Unicorn
Being interested in a couple does not mean you have to follow a particular script.
You might be looking for a casual experience, an ongoing sexual connection, or something more emotionally involved. You might feel equally attracted to both partners, or your connection with each person may develop differently.
It is worth being honest about those preferences before meeting.
The same goes for couples. Be clear about whether you are looking for a third person for a single experience or hoping to build an ongoing connection. Clear expectations make it easier for everyone to decide whether there is genuine compatibility.
And if something does not feel right, nobody should feel pressured to continue.
Three-Way Dating Is About Three People
One of the easiest mistakes for a couple to make is treating the third person as an addition to an existing relationship rather than as an individual.
A better approach is to give everyone a voice.
Talk openly about expectations, privacy, safer-sex practices, and personal boundaries. If the connection develops further, keep communicating rather than assuming that the original conversation covers everything.
For a unicorn, the same principle applies. You should be able to ask questions, establish your own limits, and decide whether the couple feels right for you.
There is no universal formula for a successful threesome. The arrangement can look different for every three people involved.
Meet Couples and Singles on 3Somer
Finding people who are interested in three-way dating can be difficult when you are relying only on friends, nightlife, or traditional dating apps. You may have no idea whether someone is open to dating a couple, and they may have no idea that you are looking.
3Somer makes that conversation more direct.
Couples can create profiles explaining what they are interested in, while singles can connect with couples and explore whether there is a mutual fit. Whether you are in Boston, Worcester, Springfield, or another Massachusetts community, you can broaden your search beyond the people you already know.
You do not need to decide where a connection will go before you meet someone. Start with conversation, look for compatibility, and let things develop at a pace that feels comfortable for everyone.
Frequently Asked Questions
What is a unicorn in threesome dating?
A unicorn is a common term for a single person who is interested in dating or becoming intimate with an established couple. The term does not define a specific type of relationship, so expectations can vary from one connection to another.
How can I find a unicorn in Massachusetts?
A dedicated threesome dating app can make the search more straightforward because users can be open about their interests from the start. On 3Somer, couples can meet singles who are interested in exploring this type of connection.
Where in Massachusetts can I find a unicorn?
You do not need to limit yourself to one city. Massachusetts has more than 7.1 million residents, with sizable communities in Boston, Worcester, Springfield, Cambridge, Lowell, and other areas.
Can a unicorn have a relationship with both people in a couple?
Yes. If all three people are consenting adults, they can decide what type of relationship works for them. It might be primarily sexual, romantic, casual, or ongoing.
Does a unicorn have to be interested in both partners equally?
No. Attraction and emotional connection do not always develop in exactly the same way between three people. What matters is that everyone understands the situation and is comfortable with the arrangement.
What should couples discuss before meeting a unicorn?
Discuss what you are looking for, personal boundaries, privacy, safer-sex expectations, and whether you are open to an ongoing connection. It is better to address important expectations before meeting than to rely on assumptions.
What should a unicorn ask a couple?
Ask what they want from the connection, whether both partners are equally interested, and what boundaries they have. You can also explain what you are comfortable with and what you are not looking for.
Is three-way dating the same as an open relationship?
Not necessarily. A threesome can be a one-time experience, while an open relationship generally involves an ongoing agreement that allows some form of romantic or sexual connection outside the primary relationship. People can explore one without choosing the other.
Is 3Somer only for couples?
No. 3Somer is designed for both couples and singles interested in threesomes, couples dating, and other forms of consensual non-monogamy.
Ready to Find Your Third?
If you are a couple looking for a unicorn in Massachusetts, or a single person interested in dating a couple, 3Somer gives you a place to start.
Create your 3Somer profile today and meet people in Massachusetts who are open to three-way dating, couples dating, and consensual non-monogamous connections.
The goal is not simply to find a third person. It is to find the right person for everyone involved