I can't stop thinking about cumming in my tight g string.

I'll start up front I'm not gay, I find women fascinating and I can't stop thinking about fondling myself in bed.

I have an extensive (mostly black) underwear collection of at least 100 pairs of small or extra small g strings, briefs, and swimmers.

I love the feeling of the polyamide and elastane material on my ass, cock and balls.

It's so tight and constricting, especially when I'm erect.

I get into bed beside my wife and after she's gone to sleep I start contracting my kegel muscles and gently running my thumb and forefinger finger around my nipples. 

After a while I'm erect and I reach down to feel if I have any pre cum to sample.

Once I do,  I take the first drops and lubricate my nipples.

The next ration goes in my mouth.

My wife has no idea what is going on beside her. I love fucking her petite fit body, but she doesn't think about or want as much sex as I do.

Once I've rubbed as much precum into the flat areas of my g string front, I roll over and go to sleep.

Luckily for me, my wife rises at about 5am and leaves me in bed.

This gives me the opportunity to repeat the above process and if I choose to cum I do.

Yesterday I harvested enough precum to leave my white pleasure trails all over the inside of my g.

I got so excited I pulled it down below my thighs and started to stoke my cock with a vice like grip. After 5 minutes of this punishment I savoured the taste of the huge amount of precum oozing out of my cock. 

5 minutes rest then pulling up my G-string into my ass and over my hard rod, I flip onto my stomach and rub my cock hard onto my bed. 

It feels so good I flip back onto my back, pull down my g and imagine myself tounging my wife through her black g string. I imagine her moaning and moving her hips in time with my tongue thrusts and suckling of her clit.

As I imagine her cumming into my mouth with volumous squirts of juice, I stroke my now wet cock to ejaculate all over myself.

My back arches and I begin to scoop up my warm cum into my mouth.

It tastes so good, as I imagine it's my wife's load.

I rub the last left overs into my skin and pull up my gstring to contain any other cum dripping out of my cock hole.

Sometimes I edge for days without cumming, but yesterday was day 12 of my deprivation period and I had to release the build up.

I get up, have breakfast and go to work, sometimes wearing a tight g string just like the one I nearly came in.

All I can say is I can't stop thinking of wearing tight underwear and cumming.

Rejoice your imagination and opportunities to please yourself sexually.