Lizzy is shy and makes sure she is directly turned away from you as she removes her shirt. Then she submits herself to your ministrations again. You continue to play the professional, not taking advantage of the several chances to get a peek.
Distressingly, but unsurprisingly, Lizzy is wearing a sensible bra, but this is just a temporary barrier. As your caresses calm her, they start to wander under her bra, and then "just happening" to unhook it. A few more strokes push the bra off her back, and then a massage of the shoulders sends it down her front. She makes no effort to replace it.

Things are going very well. You are going to licking those jugs themselves, not a bunch of cloth. She is going to be quite a meal. You should enjoy her a lot.
That is when Lizzy leans into your arms unexpectedly... Your hands suddenly go from massaging her sides to massaging 2 much more fun parts.

What to do?

Apologize for your accident and finish getting her ready for lunch?

Decide this was no accident and work up an appetite?