[MF] roommates turned FWB a month before I moved out (M25/F25)

So this is the second time I’ve had a M/F roommate arrangement end with us sleeping together. First time ended very badly so I don’t recommend it but this time it didn’t cause any issues in the friendship, probably because I left after it happened.

Barely anybody knows about this so I find it fun writing the story out as a confession and reminiscing on here.

*if you don’t care for the background/buildup just scroll to “PART 6 – THE FUN PART”*

BACKGROUND
My recently former roomie (who we’ll call Sara) and I met in a Uni group project in 1st year. The group got along super well and eventually started hanging outside of school, turning into some close friendships, many lasting to this day.

Sara and I weren’t particularly close to each other in that group but I always found her chill and very attractive. She’s mixed asian, with a really pretty face and is decently athletic. However, she’s always given off innocent type vibes and one friend said she even told him she was still a virgin when we all met in 1st year. After that she had a boyfriend for a couple years so I guessed she really only had a couple partners, if that.