The Student Room Group

Is my penus small for an 18 year old?

Hi all, i'm 18 and my friend downstairs is around 13cm, i'm really self-consicious to know wheter that's small for my age?

Not only that, i can only last around 10 minutes when having sex...hw can i increase this? Do i jerk-off to soon?
Reply 1
Here's an insight into penis size.

13cm is roughly 5.5 inches.
Average length is anywhere between 5 to 6 inches, placing you directly in the middle of average.
Average girth is anywhere around 5 inches.

This doesn't mean that anything more or less is abnormal - there is a lot of room for variation until size is classed as a medical issue.

Generally, women prefer girth to length - but both may be seen as desirable. However, this is not to say that slightly less endowed size is inadequate. Most of the feeling in a vagina is around the first 3 inches and generally the clitoris is the most important part - usually stimulated via oral sex. For gay men, length may be preferred over girth to increase prostrate stimulation.

On another note - 10 minutes is a completely average time...

NB: Porn contradicts everything I stated above, but remember that is made for entertainment purposes and doesn't reflect average sexual intercourse. :smile:
Reply 2
Original post by Ryan_94
Here's an insight into penis size.

13cm is roughly 5.5 inches.
Average length is anywhere between 5 to 6 inches, placing you directly in the middle of average.
Average girth is anywhere around 5 inches.

This doesn't mean that anything more or less is abnormal - there is a lot of room for variation until size is classed as a medical issue.

Generally, women prefer girth to length - but both may be seen as desirable. However, this is not to say that slightly less endowed size is inadequate. Most of the feeling in a vagina is around the first 3 inches and generally the clitoris is the most important part - usually stimulated via oral sex. For gay men, length may be preferred over girth to increase prostrate stimulation.

On another note - 10 minutes is a completely average time...

NB: Porn contradicts everything I stated above, but remember that is made for entertainment purposes and doesn't reflect average sexual intercourse. :smile:


Is 5 to 6inc the average size for an 18 year old? Phewww..that's reassurimg, to know the average time is around 10 minutes. How do you meassure the girth?
Reply 3
Original post by Anonymous
Is 5 to 6inc the average size for an 18 year old? Phewww..that's reassurimg, to know the average time is around 10 minutes. How do you meassure the girth?


Measure the circumference of the base, middle and head - then work out the average of these three. Failing that, some people just measure the widest point of the penis and go by that measurement.

5 - 6 inches is average for an adult, but by 18, most the penis growth is probably complete.
In 18 and have a 1 inch sucks for me but you habe a 5 inch so go use it bro also I last around 3 hours
Are u fat? I’m 15 and when I’m hard it’s measures 6.8 inches
Original post by Thisistofunny
Are u fat? I’m 15 and when I’m hard it’s measures 6.8 inches


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