Shitty accidental anal sex with my boyfriend who fucked up and hurt me

I was in for a steamy session with my boyfriend, who's a big fan of anal action. He's a dedicated lover and a total hunk, always up for some kinky fun. We were just chilling when he decided to give me a massage, but things took a turn for the unexpected. As he started working on my lower back, his hand slipped and penetrated me accidentally. The intense pain was overwhelming, but I'm a good sport and knew he didn't mean any harm. I encouraged him to continue, but he got carried away, hurting me even more. Despite the pain, I was turned on by the dominance and roughness. We decided to make it a fetish thing and invited our friend over to join in. The sight of him pleasuring me from behind was a huge turn-on for our friend, who couldn't resist joining in. It was a wild session of assfucking and exhibitionism that left us all breathless and satisfied.