Here are some of my favourites:
I don't know if you're in my range, but I'd sure like to take you home to my domain.
I would really like to bisect your angle.
I wish I were your second derivative so i could fill your concavities.
Baby, I'm like your 4U homework: I'm hard and you can do me on your desk all day, everyday.
We can integrate together if we just rearrange our parts.
Baby let me be your integral so I can be the space under your curves
I need a little help with my Calculus, can you integrate my natural log?
Our love is like dividing by zero.... you cannot define it.