Oh god I love this threesome and I love the way you wrote it.
Remus had a strong rhythm going as he bucked into the wet heat of Dora. He leaned down to lick her breast as a dog might, right across her nipple. To Sirius he said, "Look at me Sirius. I'm buried in your cousin. I'm going to come in her."
"Fuck her, fuck her, fuck her," Sirius repeated to the rhythm of Remus's hips.
Re: All is Violent, All is Bright [2]
Remus had a strong rhythm going as he bucked into the wet heat of Dora. He leaned down to lick her breast as a dog might, right across her nipple. To Sirius he said, "Look at me Sirius. I'm buried in your cousin. I'm going to come in her."
"Fuck her, fuck her, fuck her," Sirius repeated to the rhythm of Remus's hips.
Christ. Just, yes.