 [ Symptoms ] i and my bf are virgins do we can get sti and we involve in smooch and breast sucking and fingering please help really need help as both are 19 [ Disease ] most helpful answer an std sexually transmitted disease is caused by sexual exposure to someone who has an std since neither one of you have had sex then you are presumed to be std free unless someone is not telling the truth the only std that could be an issue is herpes simplex if one of you has a history of cold soresfever blisters and engages in an activity that could spread this virus to a genital area sexual play often escalates over time so a word of caution for both of you to be prepared in case your intimacy leads to riskier sex play genital contact or intercourse