I think the horny scenes can be something that happens when a level is completed instead. Rather than losing clothes when damaged you can have the character wear sexy costumes when a powerup is collected. Maybe there can be boss enemies that lose clothes when they're damaged. That way you can have the best of both worlds, the player is rewarded for doing well and the sexy content does not distract too much from the game.
The gameplay is quite solid, it just needs a little more variety. I'd like to see a few more enemy types with different projectile attacks and movement patterns. Maybe some sort of special attack for the player as well.