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 sores/fever 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.
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