Iamvanosexual is an orientation on the asexual spectrum defined as someone who enjoys having sexual acts preformed on them but does not want to preform sexual act on others. Iamvanosexual people may be sex neutral or sex repulsed when is comes to preforming sexual acts.
Iamvanosexual is not the same thing as simply being selfish, submissive, or having a sexual preference. Someone who is iamvanosexual may being repulsed at the thought of preforming sexual acts. This may cause them to loose 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.
The opposite of iamvanosexual is placiosexual.
Iamvanosexual is known as a micro-label, meaning that by saying that one is iamvanosexual it is implied that one is also asexual, or another ace-spec identity. In this case asexual is the primary sexual identity and iamvanosexual acts as a modifier, making a specific sub-category of asexuals.