Shay is also getting very turned on by all the kissing, and eventually she asks you to eat her pussy.
You are more than happy to eat her pussy, especially as she has you do it with your body opposite hers in a 69, so she can toy with and tease your hard-on. During this time Shay toys with your cock in a diabolical way that keeps you very close to the edge, but never pushes you over the edge into an orgasm. It's maddening and intensely frustrating.