ben wa balls during sex?

Assuming you are talking about vaginal sex, I think one really obvious con would be that they would get crammed high up into the vaginal canal and it might be difficult to get them back out.

If you're talking about anal sex, see you at the ER. ~

Yes vaginal is what I was referring to.

Yes, we have done that. It does lead to different sensations, it was just so-so for us. As far as them being crammed up in the canal, as soon as he pulls out and I stand up, gravity sorta takes over. No worries about them being hard to remove.

I feel like they would run into my cervix! I have a short vaginal canal!

If you put lots of heavy ones in (I go for solid stainless-steel ones) you can get a very full feeling, and, depending on exactly how the balls situate themselves, you might get more g-spot stimulation. They also might decide to wander around near the cervix and get painful.

Stainless-steel ben-wa balls are great with temperature play. If you can take chilled balls, put them in, and then he gets a cold, stimulating surprise.

never had them in during sex?

i don´t think that will work out,, when during sex,,, because the penis needs space,, may be girl on girl with a small vibe,,, i think this is just meant for an alone time play,, and to excersive your muscles ,,, but i think you should never use this during sex may be as play at sex but not when having penetration,,, but alone they should be fine,, i hope this is what you meant ,, i didn´t understand your question a lot but i hope some things that i said was right said and answer your question take care