Well there are these things called "spontaneous erections" that happen for no reason. Sometimes we can be erect but not be turned on.
They happen less and less as we age though, so just because you seen a 20 year old with a banana in his pants it doesn't automatically mean he's happy to see you. A 50 year old man, diffrerent story.
What can cause a "normal" erection can be just about anything, contact, a phrase, something we see, etc.
Do the 'normal' ones happen often? like on a daily basis or it has to be certain days when you're blown away by a girl around?
They can be caused at any time, it's not a day-by-day thing or on a set schedule, they're provoked and that provocation can come at any time, even by thought.
" so just because you seen a 20 year old with a banana in his pants it doesn't automatically mean he's happy to see you. A 50 year old man, diffrerent story." - the last but bout the 50yr old cracked me up :P
just to clear things up, you DO NOT have to have an erection to be horny
but it depends on how attracted you are to the person. LIke there's this girl
and even just like talking to her about sex gives me a huge erection so no in most
cases all you gotta do is talk dirty
Haha I get horny at the most inappropriate times...
REALLY EXPLAN SOME PLEASE
Haha I do too... I'll just be sitting in class and as soon as the guy I like makes eye contact with me or smiles at me, I get really wet. Luckily girls don't show it when they get wet but yeah I get turned on in the middle of class...
Me too! I get horny ALL the time lol my crush is in one of my classes and sometimes if I'm not interested at all in what the teacher is trying to teach, I just imagine my crush 2 rows away doing naughty things to me haha. Or when I'm watching a movie, reading some kinky shit on this site, even reading a steamy book lol
Scroll Down to Read Other Opinions
What's Your Opinion? Sign Up Now!if I know that there is going to be sexual contact that has not started yet
if I am watching a movie that is adult rated with sexual indendios in it
I always enjoy a nice soft lotioned handjob = instant hard on moment hand touches me
Daily things that get me aroused:
Tight pants
Low cut tops
No, it does not.
No, it dos not, but may happen more with someone you like.
The girl I like was wearing Solo's (those tight black pants) and I was just staring at her but for like 3 seconds and BAM. Things like that happened a lot more in my Fresh and Soph year, this year not so much.
Physical contact is often not required. Just thinking about sex is enough to get a guy erect...at least a young guy. The erection from thinking about sex can be about any girl...if he knows her or not. Just a good smile or talking a little bit to girl will make me think about having sex with her and can cause an erection. Also sometimes we can get an erection while not even thinking about sex...although that is mostly common in younger guys prob teens and 20's.
Man, it could be just about anything. Physical contact, something you say, how you look... teh list goes on and on
Its true I'm old lol but not THAT old I can still get hard if the wind blows and a pertty lady is close by or by thinking of someone I use to be with or would like to be with. And no you don't have to touch us but it does help hehehehe just a hand on the leg will do it for me
What if my hand touched a guys leg and he backed away a little and then needed to go out the room and freshen up in the bathroom all of a sudden, what does that mean? because I was upset he didn't like it or I made him feel uncomfortable or something...=/
He most likely got an errection. (90%)
no it doesn't have to be physical contact, and it can be a girl he has no special feelings for.
I've gotten erections sitting next to a girl I barely knew who was wearing short shorts.
Nice sexy shorts just about anything no contact needed
Sexual Relationships 
Sexual Health 
Most Helpful Guys