excitement

As quoted above:

Sounds extremely sexual and kind of is.

Yes, in fact: in Irish-english, "the excitement," is a common way to describe the sexual act. This is best illustrated within the book Angela's Ashes by Frank McCourt. From Chapter 1 of Angela's Ashes:

A knee-trembler is the act itself done up against a wall, man and woman up on their toes, straining so hard their knees tremble with the excitement that's in it.

Ex*cite"ment (?) n. [Cf. OF. excitement, escitement.]

1.

The act of exciting, or the state of being roused into action, or of having increased action; impulsion; agitation; as, an excitement of the people.

2.

That which excites or rouses; that which moves, stirs, or induces action; a motive.

The cares and excitements of a season of transition and struggle. Talfowrd.

3. Physiol.

A state of aroused or increased vital activity in an organism, or any of its organs or tissues.

© Webster 1913.