It's an interesting question. We did ask each other what we were thinking or like to think when having sex together. For me, I couldn't help but thinking her moaning with her friends and feeling happy. For her, she said she likes to think strangers looking at her (but pretend they aren't looking and just doing something else) while her friends are fucking her. I asked if she really wants that to happen and she said she just likes the scene. On top of that, I should be holding her hands looking at her while her friends are fucking her and cum inside her or in her mouth. She said she can cum again and again for many times with that in mind.