Placiosexual is a microlabel on the asexual spectrum defined as someone who enjoys performing sexual acts for other individuals but does not want them reciprocated. Placiosexual individuals may be sex neutral or sex repulsed when it comes to having sexual acts performed on them.
Placiosexual is not the same thing as being dominant or having a sexual preference. Someone who is placiosexual may be repulsed at the thought of someone performing sexual acts on them. This may cause them to lose any sexual desire or attraction. This discomfort may be caused by dysphoria or similar discomfort with one's body, but it does not necessarily have to be.
The prefix placio- comes from the Latin word placere meaning 'to please'.