are you asking can you wrap towels around a penis like you would a condom?

ok...well no....anything porus is an easy way for sperm to get through....once the sperm leave the penis...if its outside they pretty much die right away....but if they are expelled from inside your body ...they can pretty much live....when a man exjaculates its alot of sperm...alot ...like thousands...this is because so many sperm die trying to get to the egg...the sperm have to dodge alot of crap to get to the egg to fertilize it....once it is outside of the body though they die....it doesnt take long....as for towels...like i said..anything porous is something sperm can get through...even very tiny pores....thats why condoms are latex ....latex is like plastic...plastic doesnt have a porous surface....so if you used towels....and he still ejactulated in your body...thats pretty much a no good....if he ejaculated outside of your vagina...but around it....they still have about give or take a few minutes to work their way into your body ....yes...they do live for a few minutes and will take that time to try and do their job...get to the egg....the best way not to get pregnant...is condoms...if you want to have sex...if you can abtain from sex...thats the only 100% way ...next to condoms.....and then there is some other over the counter methods...but im not sure about them ....as well as some minor procedures your doctor could do...but i wouldnt suggest that to much...youd have to talk to your doctor about that...keep an eye out....good luck