Yeah, it's fun. I replayed a few more times since two days ago, still fun, only wish I could play more than the 8 days, haha, but that's a demo for you. With a lot of practice, and use of the pause menu to move my mouse position without the timer going down (That's a little exploit there, but it's helpful for a touchpad user like me. Especially when sometimes the touchpad will 'click' multiple times without warning.) I started to see the 'Special Service' more often.
Might I suggest that 'Special Service' can give tips? Randomized tips.
I also suggest female customers as well, we can't leave our cultured women out of the femboy fun! The Special Service could be oral, or maybe a bit of dom play by the customer?
Gameplay-wise, I recommend increasing the walk speed of the protagonist. He's a bit slow. I could also suggest use of the [Spacebar] key when near interactive objects or persons to 'interact', instead of just mouse exclusive (which isn't bad, but I imagine many players use touchpads for laptops as well). In fact, the entire game is mouse exclusive at the moment. But I imagine adding things like WASD keys for movements and the [SpaceBar] suggestion would be a bit more difficult to implement than sometime more simple like walk speed increase.
Might I recommend releasing Femboy Burgers on both Itchio & Steam? The latter will certainly help in this gem's exposure. Steam does allow Adult Games now, Lord knows the increase in Adult VNs and RPGMakers in there now, a game like this would do very well with only competition like that.