She does, and she wants to take it further.

It was impossible, from Sarah’s vantage point, to miss what had just happened to her husband. After all, she’s just had a bird’s eye view as his body changed, flesh moved, becoming more feminine. “I think...” she said, unable to stop thinking about what this could mean. “There’s more to my cock than either of us realized.”

Realizing something must have happened that Sarah had seen, Tom looked up at her, licking his lips and finding they were plumper than he’d ever felt them before. “What do you mean, honey?” He sounded innocently unaware, as more than anything else he didn’t want Sarah to find out about the coin and what it could do. Not after she had started becoming more dominant. Who knows what she’d do with that power?

Before answering, Sarah reached down and cupped the cheeks of Tom’s butt, and he realized they were heftier than normal. “It’s looking like all that cum you’ve had is affecting you. It makes me wonder...how far would it go? If my jizz really is changing you.” She let out a throaty giggle, clearly amused by all this. “It’s so odd. I never would have believed anything like this was possible, but then I grew a cock, didn’t I?”

Said cock was already getting hard again, and Tom got hard as well, thinking it was the thought of him becoming more feminine that was turning his wife on. Reaching out with one hand, he started stroking her, and asked, “Want to see what it would do to me if it’s applied...topically?” The question was a bit ham-handed, but if Sarah thought it was suspicious at all, it didn’t show. Instead, her eyes started roving over Tom’s body, as she thought about where her cum should go.