Trust me it is.
You see ass cause it's about ass. That picture is just so you don't feel bad or anything. You know, to let you know if you don't already know, that it's normal.
Scratch that ass girl! And boy! And then smell that hand. Eww! Yeah I know but it's okay if you were alone. So do it from time to time cause that way you can detect foul smell and know you've caught something. Even the most hygienic person catches something. It's in the air and in our pleasurable hormones too.
When you have an itch around your butthole or your vulva, please take care of it by reaching in if your hands are clean, then smell it after. That's how I know the vaginally fluid has a weirdly pleasant odour. If it's a repugnant odour, it's a sign to go see a doctor. If you feel a weird bump, it's a sign too.
May all seem insignificant until it's you or you help someone avoid an escalation.
Bonus point, you'll feel confident and good about yourself, and then more if you're gonna meet your partner.