First makes sense. They need clothes to enter, then they can go off if so desired, nothing wrong there.
Second is just weird writing, yes.
Overall, liked the comic. Not everything has to be all serious and all drama and all "I have sex with 2 guys, and now with you, how could you have sex with one of those 2 while I also slept with the other?" (I assume you all know which comic I talk about). Might aswell make it funny if no-one cares about plots :)