I just got home from being at the beach with my sister and cousins. I usually don't change out of my beachwear immediately after getting home, unless I have to go somewhere but it's slightly cold so i pulled a sweater over on over the top of my swimsuit. I have a friend coming over soon though and i don't know if i should just change because he may get the wrong idea from me being dressed like this when i know he's coming over. would it be ok or inappropriate to stay dressed the way i am?
It depends on the weather and the environment. If you live close to the beach there is nothing wrong walking around in beach clothes. If you are afraid he might get too horny, then indeed put a sweater and a legging and the problem is solved.