so easy. If you're really want to know how big it is, you must be asking for sex. Just seduce him and ask.
*Note: This might not work.
The only thing left is touching.
By stimulating your prostate.
You can grab it, but that or looking is it. There is no body part that has any relationship to the size of the penis.
No unless you have an std.
Without measuring it or asking the owner you can't.
It means touching the breasts or penis or vagina.
Apart from seeing him with an erection and measure it? No.
Twitching is possible, but no serious amount of movement (not including erection and detumescence, of course).
no it is not gay
Sexual contact is the touching or coming into contact with the penis, vagina or anus. This can be through touching yourself or someone else, or them touching you is considered sexual contact. While it technically refers to more than "touch" - e.g. it refers to contact as say a penis in contact with a vagina or anus, not so much as a finger touching a penis, etc.
Ask him. Ask his ex-girlfriend. Ask somebody who knows.
STOP TOUCHING YOURSELF AT NIGHT