If you’re not a big Instagram user, you might ask “Sean Who?” – but with more than 1 million followers on Instagram, 22-year-old Sean O’Donnell is a big social media star.

Sean O'Donnell towelPhoto: Instagram

Your next question might be – why should I care? Oh you will care, once you see his abs. There you go:

1. The thing with the shirt

2. Just sitting there

3. Nice arms, too!

4. The mandatory Calvins shot

5. Pool time

6. Some more fun at the pool

7. Summer time

8. Bathroom selfie time

9. He spends a lot of time at the pool

10. You have to work for your abs

11. Bed time?

12. Chilling

13. Over and out


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