A person(almost always girl) not up for sexual experimentation. Will not challenge the boundaries of traditional sexuality by engaging in harmless acts of good fun such as making out with their best friend at slammin' shindigs upon request of male counterparts.
Lisa's being such a lameosexual; the guys all wanted to see her go down on Jenny but, alas, she wasn't having any of it.
The sexual attraction to books. This can apply to what is written within the text or being physically aroused with books by using them to stimulate their genitals.
A lesbosexual is someone who is attracted exclusively to lesbians. This person can be male or female. Generally lesbosexual males are guys who have a thing for women whom they can't have. Lesbosexual females are just lesbians who don't like straight girls.