[Good plan! So long as she says nothing... he will continue to lean into her petting his hair.]

Aw, but you always willin' to grind on my giant dick.

[... The joke being that his dick is always giant, of course --]

Long as you think you'll get off doin' it, then... sure, why not?
We can try it with ya small.

I might hafta use my hand too, though... that okay?