First time experience and some problems.

Whats up guys.

Short backstory:
Im a 26yo straigt male and already experimented with buttplay in my puberty, had some experience with plugs and always found it nice during masturbation.
My last gf tried fingering me but… It wasnt that nice (Situation was kinda whacky).

So last month i stumbled over this sub and got really curious.
Like damn i wanted such a toy that brings me to an incredible high. Maybe even involve it in the bed with my gf.

Some talk later she was also curious, cause we read it can lead to even harder boners, longer intercourse and shorter refractory periods. In the past she didnt like the idea of a man with something in his butt, but suprisingly she was open to it.

So i ordered a Helix syn trident, my gf was at work and i have holidays so i got into it. Got clean, lubed and relaxed, did evrything right imo.
I first tried the doing nothing method, Browsing thru gone wild and stuff to get me horny.

I was horny but my butt was like: meh, thats not doin anything.
So intried to force involuntaries by clencing as long as possible.
And after some time of my muscels spasming it hit me!

A warm intense pleasuring wave goin from my prostate through my stomac. After it got a lot more intense it felt like i was close to go over the edge.