unless there is actual intercourse later on, someone might wanna remove that smut tag.
at this point in time this is less ecchi than To Love Ru.
that said, amusing series. though I do wonder why he didn't forbid that enchantment being used by the warrior-ojou before her second time using it for his own safety. then again if he did she might actually listen unlike the others.
(leave it to the diligent characters to accidently create plotholes)