A relationship where I can do it whenever I want. How will my submissive sex friend, who says she's "not interested in other dicks," react to a dick other than mine? Her pussy glistens right in front of me. She doesn't show any signs of disliking it even when her head is held down while she gives me a blowjob. She occasionally smiles at my dick, which is thicker and longer than mine. I was planning to make her say "it didn't feel good" by having her cuckold me in front of me, but...