What makes a man bad in bed?

[Gründig]

trying to re circumcise yourself.

[Lightshade25]

Premature ejaculation.

[Odin]

If a man just wants to get his dick wet, he doesn't care about getting his girl off, or whether she has fun, he just wants to get it in and shoot his load, just so he can say he got laid. And when he fails to give a girl an orgasm either through cunnilingus, fingering, or penetration at least 75% of the time, then he is bad in bed.

[Trentino]

Two things that will make u bad:
- Being sub 21 cm long with a formidable thickness
- being ugly


Once you've passed her threshold of being good-looking enough then all it matters is size. Literally all it gets a woman to cum is a big cock, saves yourselves the mental gymnastics but there's no way around it.
NSFW

Spoiler!

Studies: - Women who prefer longer penises are more likely to have vaginal orgasms (but not clitoral orgasms): implications for an evolutionary theory of vaginal orgasm. source: https://www.ncbi.nlm.nih.gov/pubmed/23006745

- Female copulatory orgasm and male partner’s attractiveness to his partner and other women (meaning the better looking you are, the more she'll be satisfied during sex)

source: https://www.sciencedirect.com/scienc...91886915001002

[Lightshade25]

Bad hygiene as well.

[Oneeye]

Being a pussy. Why are we listening to women about how to please them?

[rein]

Snoring.

[Bobby Martnen]

Erectile dysfunction.

[Joso]

Not being able to sleep

[Vojnik]

Alot of factors come to play. But the biggest in my opinion is low self esteem. The mind is the most crucial part of sex.