About a year ago, when I (M19) was with my girlfriend (F19) I went home to visit my family and after a few days of being apart we decided to send some snaps to each other. We exchanged a few pics then I received a Snapchat from another friend. Let’s call her Sarah (F18) Me an Sarah have been friends for a while and she was my best friend on Snapchat. She had sent me one when I was double tapping to relay to my gf, but I accidentally replied to hers. So I had accidentally sent her a dick pic. I instantly send her a text warning her but it was too late. She Opened it and texted me back asking why and wtf. I started to apologize, as I was I got a snap back of her holding up 2 fingers gesturing that I was small and trying to hold back a laugh with the caption “that’s it lol” and then nothing more was said. Until a few days after when me, her and one of our other friends went out for ice cream. Let’s call the other friend Hannah (F19). We were sitting in the back of my truck eating when Hannah asked how my little guy was doing. At first I was confused but then both girls were laughing. Hannah told me that Sarah had told her right after it happened. This made me get hard almost instantly to which they noticed and commented on.