This was an older ramblefap I'm reposting so I could fix some of the tags. It's a scenario I couldn't stop thinking of where I finally get to have my first time with another girl.
Happy Birthday, Bro! by u/squirtypunisher093 very slight mentions of Lots of
It's always a special time in a young man's life when he loses his virginity. Today is your 19th birthday and your best friend and his girlfriend (female listener) stick around after the party to give you a very special gift. You're a little unsure about some things but your buddy shows you the ropes as you find your own beat. It ends with you and your bro in pretty close quarters. But hey, there's no such thing as being "too close" to your best bro. ;)