I believe that it is only the act of vaginal penetration.

Oral sex, anal sex, and handjobs are forms of pleasure.

Handjobs and oral sex also falls under the category of masturbation which is the act of manipulation one's own or another's genitals for pleasure.

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Wow... Funny isn't it? How you think Love has finally found you..... But at a whim it withers and blows away...