I feel like you can wiki this...
you're... clearly like... super self conscious...
I don't know if you know this but being horny isn't 24/7 EVEN FOR A GUY (forbidden words)
so of course they aren't going to always want to have sex, they aren't always going to have energy and they aren't always going to be horny or last...
if you want a guy to be fully functional... try this... instead of just jumping into bed... or doing foreplay then bed... make your whole day a spontaneous adventure of both romance and foreplay... do little things like and this is also forbidden words, "send him flowers", make orgami for him, do something cute for him, or romantic, maybe play with his ears, get adventurous... watch porn together, and don't fall into the dumb idea that guys actually prefer or even want to fuck the girl in the video, smetimes it's just fun and it gets you horny and it's not an investment... just... like... chill out...
weirdo
At 29, if he is "having sex", that is, inside you, he should not be losing his erection. Not unless you are expecting to stay hard during a marathon. How long are you expecting him to be hard? He goes to doggy style, because that often feels tighter, and you get more friction between the pussy and cock, thus more cock stimulation to stay hard. This does not mean there is another girl. If healthy, in good shape, he can handle two women, at his age. Just because he hasn't gained weight, doesn't mean he's in good shape, and there could be something physical going on.
Scroll Down to Read Other Opinions
What's Your Opinion? Sign Up Now!Do you know what is fetishes are? If you do, you need to probably start reinforcing and promoting them. Get into the things that get him going and keep him going. Got to make sure the relationship evolves
It's not your fault, its common. Eventually we just get tired. If you think about it, men sometimes have to wait a long time to have sex again, and when they finally get to its like a dream come true. Fantasies whirl around, cum flies, and we just don't want it to stop. Then.. we start to overthink things. Lose interest in the same thing.. I would just have to suggest you spice it up.
Do you not ever get tired? Honestly, talk to him about it. Maybe it's the specific position/action he's doing? Maybe it's him physically, has he gained weight or become less active in general. Maybe it just happens (sometimes we just loose our erection for NO reason at all)? Don't take this so personally, seriously. I can almost guarantee it's NOT YOU!
After 25 a man's body doesn't produce as much testosterone as it used to a man's sexual peak is usually around 18-23 after that we don't have the energy we used to and sex in general doesn't excite us as much as it used to
I don't think it's you i think it's cuz he is getting older and as men get older their penis grows old with them it can stem down to a lot of things health reasons, his eating habits , does he smoke and drink alcohol? Does he exercise? Best thing to tell him to do is take vitamins, vitamin D, E. D. is very common in men these days and that is probably the reason he has some blockage that is stopping his blood flow. I am almost 40 and I went through the same stuff so don't take it to heart it most likely isn't you , Also have him go see his doctor to see what could be causing it, Doctor might prescribe him Viagra etc. Me personally think Viagra is a miracle drug for men don't have h in take it all the time but if you 2 plan on having sex all night I recommend it he Wil go all night lol
Dick are well sucks sometimes. And loading erections during and feeling tired could be a sign of medical problems. They could also be just him being tired and then there's the great one where you start to lose it and you're thinking about it and it totally dies because you are just thinking about it not working its extremely distressing to have that happen. Could also be he is just getting bored. How often are you doing it? Research shows more than once or twice a week for some leads to a lack of desire.
How often are you having sex? Maybe he just needs to refocus sometimes
... doing the same thing everytimes get boring in marriage?
it's something physiological and already considered as an Erectile disfunction.
eh he closed his eyes, probably he's imagining something else?
I might be wrong though.
Dude. Your overthinking. There is the question about.
Mood
Strees
Hormones
And u Girls always forget the basic!!!
Ask HIM!
Otherwise give him a very good bj after sex and he will surely rise.
Or wake him up with a bj or sex.
There are many things that can effect sex drive. Certain foods, stress, worry, ask him if he has these problems. Ask him what he is thinking about when this happens.
Sexual Relationships 
Sexual Health 
Most Helpful Guys