These keep appearing on my thigh, and I try to remove them, but they keep appearing. What are these? (NSFW for pic being taken near butt.)

26 20

7 10

24 41

5 10

20 40

19 21

11 10

34 43

21 40

8 20

36 16

45 41

7 10

8 10

2 10

5 0