Grab them both and form a booty sandwich

You flick on the music then immediately grab hold of Anna, spinning her around and pressing up against her back. In time with the heavy beat of the music you grind your hardening crotch in the firm mounds of her buttocks. Behind you Trish presses up against you, her big breasts squashed tight into your back as you find yourself sandwiched between the two curvaceous blondes.

"That's it ladies, feel the music," you murmur sliding your hands up from Anna's hips to cup and squeeze her immense tits. Anna moans and pressed back harder against your loins as you maul her lovely chest, fondling the oversized orbs through her tight top.

You feel Trish reach around you and rub your swollen crotch through your pants while she rubs her big tits up and down your back. Both ladies appear to be getting as turned on as you, they should get good marks from this course.

Anna spins around and wraps her arms around you, planting a hungry kiss on your lips before leaning past you to kiss Trish with equal desire. As the two women passionately kiss you reach down and grab Anna's ass, pinching it roughly.

Your cock is bursting to escape, definently time for the next part of the lesson