Hand sex – be it fingering, fisting, jerking someone off, giving a handjob, etc. – is a popular kind of sex, and for good reason. You can take it anywhere – no bed required. Its loads of fun! Hand sex can serve as foreplay or stand alone, as time and desire permits. Theres no fluid exchange involved, and STI transmission risks are much lower than with other sexual activities. You dont even have to take off all your clothes.