sentences:  It includes a range of sensations that include orgasms that are full-bodied, and orgasms that last from a few minutes to many hours.However, this technique is not without risk of contracting sexually transmitted infections, in particular HIV.A person using his or her finger, with a small wound, to stimulate a woman's genitals could be infected with HIV found in her vagina's fluids; likewise regarding a man's semen containing HIV, which could infect a partner who has a small exposed wound on his or her skin.