Yes, anyone can use a suction cup vibrator and there are different sizes and types available, some more daunting than others. If it’s the first time you have tried this type of sex toy, you may want to choose a modest size one to begin with. You can always go larger and larger, so start small to find the best fit for you. Of course, you can use it for both anal and vaginal penetration, but make sure you stock up on plenty of lubricants to avoid any unwanted pain or friction.