"Well...I guess..."
Lizzy sits on the bed, her tense back to you. You sit behind her and carefully apply your hands to that back and begin to stroke and caress. It's a skill you have found very useful in the past. Many of your meals have become too relaxed to defend themselves after a good back rub. Several lasses have even fallen asleep, and at your limited mercy. One slept so deeply she completely digested without waking. Of course, it doesn't always work, and as nervous as Lizzy is, she might be an exception too, but there is a chance she will shortly be snoozing in your stomach.