I think my boyfriend masturbates to my mom

Never underestimate how horny guys can be, or our capacity for finding ways to justify things that, deep down, we know just aren't right. So, yeah, I suspect your suspicions are correct.

My opinion is that everyone - including those in a relationship - is entitled to have sexual fantasies about whoever and whatever they want, as long as that doesn't cause problems in the real-world relationship and it doesn't harm anyone else. However, this is a slightly unusual situation, since the woman isn't some hot celebrity or a random stranger glimpsed in passing, but someone very close to you and someone your boyfriend presumably regularly spends time with.

For what it's worth (which ain't much), you're not the first woman in the history of humanity to have a guy who also finds her mother hot. I assume you're not drastically different in terms of physical appearance, and you probably (although you might not want to admit it) share some personality traits with her. So if he likes you a lot, it makes sense that he'd also find your mother attractive.

Some guys have a huge kink about MILFs and others like to go there occasionally, so maybe that's a factor too.

How you deal with this is obviously the big question. I hope you understand that most guys are pretty good at compartmentalising sex and emotions. So it's likely that, in your boyfriend's mind, your mother is a convenient masturbatory fantasy because he's familiar with her, and that, combined with a couple of (pretty tame) photos means he doesn't have to do much work to create a fantasy version of her in his head. It's not impossible that he has some fantasy about something serious with her, but I suspect it's much more likely to be a "just sex" situation.

I suppose the simplest way to handle this at the moment is not to tackle the issue head-on, but rather to start paying closer attention to how he is with your mother. Maybe flirty stuff has been going on that you've assumed was only joshing, while it's actually been more serious. Now that the seed of doubt has been planted, you'll need to be careful not to read things in to what's said and done, but if you see things that raise questions in your mind, you should talk to him about that.

I suppose you could try to engineer a conversation with him about your mother where you edge it around to asking him if he finds her sexy, but I don't know if this is consistent with your relationship. If he expresses outrage at the very thought, then that would suggest that he definitely has something to hide. If he sheepishly admits that he thinks she's hot, then at least you'll know that he's honest. As always, though, never ask for a candid reply to a question if you're not sure you can handle the worst answer you can imagine.

If you want to go straightaway to full-on confrontation because you find the whole idea of him fantasising about your mother extremely difficult to accept, then obviously you just show him the evidence and ask him what's going on.

Be prepared for him to come up with all sorts of hilariously implausible explanations. If you don't have the sort of relationship where you're both fine with the other looking through your devices, then you should also be prepared for him to be outraged at your snooping. But that wouldn't negate the reality of what he's been doing.

Normal, but something that I can understand and think it's reasonable that you'd be angry at. However, if I was your boy friend then I would be super pissed off that you'd invaded my privacy like that. So you could bring it up with him, but it might be a bit of a kamikaze attack.

Try minding your own business.

We both do.

Maybe you can dump his sorry ass?

it's perfectly normal for your boyfriend to masturbate it's normal it's healthy but it is not ok that he's masturbating over your mum. He should be masturbating over you. Talk to him sure but be nice about it.