And I have to say it has to be the best purchase I have ever made. I'm 18 and still a virgin, but I have performed oral on my ex-girlfriend and I've fingered her and it feels pretty realistic. It's nice a tight, but not too tight. Twisting the cap for less suction to last a while and then tightening it for more intensity and suction is incredible. The only downside (on my part) was not warming it up, but even then I'd give it a 9/10 while it was luke-warm. The lube I bought wasn't the best (sliquid only because it was cheap) but still an amazing overall experience. I wouldn't mind if it was a little tighter, but no complaints.
Should I buy the SIAC next? Would the vortex provide a more realistic feeling or no? How about super/ultra tight?