Fill My Ass
Tamsin has chosen three toys for you both to play with, the only thing is, all the toys go in your ass. As Tamsin loves anal as well, she wants to use all the toys first, then let you use them when she moves on to the next bigger one.
She strips off and tells you to get naked, she rubs her pussy and tells you to lick your finger and lube up your ass, she bends over and shows you what to do, her finger probes deep in her ass, then she takes out the first toy and slides it in, its too small for her, so she picks a bigger one, give you the small plug and fucks her ass as you wank.