Many clinical studies, as well as our own user data, indicate that penile traction therapy can both increase the overall size and straighten your penis.

How Our Extenders Work

Thousands of Clinical Trials have enabled us to design and innovate the most comfortable and customizable penile traction therapy device on the market.

Why We Are the Best

Penile Curvature Correction Devices

X4 Labs™ offers a wide variety of Penis Extenders specifically designed to treat curvature typically caused by Peyronie's Disease using feedback from doctors and patients alike. Straighten your bent penis over time just by simply wearing your device.

View Our Straightening Editions

Online porn video at mobile phone


missionary position sexual intercoursefirst time arse fuckkama sutra demonstrationssexy muffsexual intercourse positions picturesunique sex moveshpw to give a blow jobkinky sex positions tumblrwatch sex vidieokama sutra doggy stylehottest doggy stylecoitus clipsmuffing sex videossex positions demonstrationbliwjob videotopsexpositionbest cunninglusporn elephant sexkamasutra video fullsax position picturebestsex positionanal sex position picturelateral coital position demonstrationsexual positions posteranal sex spooningerotic missionary pornfacefuck wifeblow job vieokamasutra bideoskarma sutra porn videosart of blowjob tumblrtopsexpositionssex positions with diagramssexpostionssquirting 101 axel braunfree download sex video hotpainless anal sex positionsultimate blowjobssexy pozitionmissionary anal picsmissionary style porn videosthe best pussy licking videoreverse cowgirl poseshaking squirting orgasmleapfrog sexbest sex positions kama sutrasex video kamsutrasex positions with a vibratorkamasoothra sex videosvery first anal fuckbest blowjonsplitting bamboo sex positionkamasutra reverse cowgirlbest blojob eversex positions demonstratedreal first time anal pornrear entry sex position picturespregnant sex positions tumblrgreates blowjobrear entry sexual positionkama sutra sex pornkamasutra pose 69best doggystyle fuckmissionary fucking moviesslow deep blowjobkamsutra sex position videoscowgirl orgasm videosbest sexual positions illustratedtraditional missionary positioncowgirl porn stars