As well as you can

"Seven times seven, Trish, or are you t-too dumb to know basic multiplication." You say through gritted teeth.

The toy inside you grows and shrinks to surprisingly filling sizes. You glance down and you can visible see your lower belly bulge as the toy expands. You absentmindedly place your hand on your belly and can even feel it moving inside you. This causes you to have another powerful orgasm.

"Whatchu got goin' on there Miss T." Trish smirks.

You open your mouth to speak but she turns on the vibrators full blast and the only sound out of you is a slight squeak.

"What was that? Maybe you are too fucking horny to be teaching a bunch of young impressionable people such as us."

You close your eyes and concentrate.