Sore sex with a new guy

Lina
So I recently started sleeping with a guy I've known forever but haven't ever had sex with. It hurt like a bitch and I basically just wanted him to cum and stop. I was sore for 2 days after.  I was plenty horny and wet. The first time he tried he wasn't fully hard so that didn't work but the second time he was fully hard and big..Any advice on how to handle this?