But how do you want me to concentrate if you don’t stop rubbing my nipples?

I ask a colleague from the university for help with some jobs that we have to do. i invite you to my house. when he arrives he catches me doing a little sport and when i lift my head i see him staring at me. i don't know how long it's been there. we start to study and there is no way to concentrate. he keeps running his hands over my arms, my chest, my nipples ... but man, what are you doing? when i realize he is on his knees and licking my cock. study or a good fuck ?. what a dilemma right?