Hot level
Task for the woman
Get out your available sex toys and tell him your ass is at his disposal: he can do whatever he wants. Remember the actions and how long they take, then do the same to him.
Similar tasks
Medium level
Task for the man
She may end up on the receiving end too if you're patient. Lie on your stomach with a pillow underneath you so your ass is raised. She will hit your ass with a belt until you say the safeword you must agree on beforehand. But if you hold out, she'll take your place. The game continues until one of you stops it with the safeword. She has 10 attempts. The loser fulfils any wish of the other partner. Stay strong!
Medium level
Task for the woman
Get your guy on all fours at the edge of the bed, put a gag or your panties in his mouth, tie his hands behind his back and play with his ass however you want!
Hot level
Task for the woman
A domination task. Don't read it aloud or tell your partner. Lay your guy on his stomach, blindfold him and place a pillow under his groin so his ass is raised. Put on a strap-on without letting him see and massage him, including his ass. You can lick his ass and generously lubricate his anus, using saliva if you like. Gradually start fucking his ass. You can begin with a finger or anal beads, then start using the strap-on when you feel his ass is ready. If you don't have a strap-on, buy one; for now, you can fuck him with a vibrator or find something shaped like a cock, including a vegetable.