<human>: Condense the text into a few key points

This is a throwaway account for a couple reasons.

Okay, so I've been dating my boyfriend for the past two years and some odd change. 

It's been a really happy relationship and I can't even put into words how wonderful our relationship is.

A couple months after we started dating, he started talking to me about threesomes. Now, I am no prude and am always willing to try anything once. At first, I was uncomfortable with the idea, but within the next couple years, I've found myself warming up to it.
I know threesomes tend to be kind of "taboo", and for the record, I am not a slut or anything like that. I'm just a girl that wants to try a ONCE IN A LIFETIME EXPERIENCE, and also please my boyfriend even more than I already do.

The thing is, he wants me to approach a girl. I just don't know a way to go about it. If anyone has been in my shoes, or has often thought about approaching women for threesomes but never have the opportunity to, I could really use some advice. I want to surprise him with one for his birthday.
<bot>: My boyfriend of 2 years wants us to have a threesome, but wants me to find the girl. I do not know how to approach a girl in this matter and need advice.