Would you say this image is “dirty” (or even “obscene”)?

I found it randomly while browsing online and my first reaction was an appreciative smirk.  Then I noted how simplistic it is.  It’s really just five moving lines.  Do you think it’d be ok for kids to see this image?  If they figured out what it represented, doesn’t that mean there’s nothing to protect them from?

What if I rotate it?

Doesn’t it look far more abstract?  Or does it look even kinkier to you, you acrobatic sexpot?

Discuss.