If you’re not a big Instagram user, you might ask “Sean Who?” – but with more than 1 million followers on Instagram, 24-year-old Sean O’Donnell is a big social media star.

Sean O'Donnell towel
Photo: 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

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I, think about my next meal in #mycalvins

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5. Pool time

6. Some more fun at the pool

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Not a bad way to start off the week☀️

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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

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Sunday mood.🌹

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13. Over and out