Accidently starting a poly relationship with me [22F], my sister [18F], and my fiancé [22M] [FFM]

The night of my sister’s 18th birthday, she came to me.

“So I have a request: I don’t want to be a virgin when I see my boyfriend in 5 months… Could your fiancé maybe take my virginity?”

She always had the hots for him – but she’d never admit that.

But come her 18th birthday, I agreed – under the condition that he had to do what I say, nothing more, nothing less.

So at midnight she came into my room in corset I quickly stripped off her. I had my fiancé stroke himself to us kissing and sucking on each other’s bodies till he was rock hard. I brought my sister down to his cock and showed her how to stroke and suck a dick right… And she took over, learning quickly what turned him on. I had to pull her off of him, she was so addicted.

“How about we pop that cherry?” I say, laying her down. My fiancé slowly penetrated her, spreading her pussy as wide as it’s ever been. She shivered as his cock slid all the way into her cervix… And then he began to fuck her. I told him how fast, how hard, and how to kiss her… Making her cum three times during her very first experience… Then it was my fiancé’s turn to finish.