Anal sex

okay girls, I am in need of some serious advice. I got a little too drunk with my boyfriend last night and we had sex for about 3 hours (normally lasts like 3 minutes 🙄) I got a little carried away and my drunk ass decided I wanted to try anal for the first time. Used a condom and no lube. Now I am in a lot of discomfort & a little pain. how long does this last & what can I take for it??? & I don’t need any advice for next time bc trust me there won’t be one.😂