If you’re not a big Instagram user, you might ask “Sean Who?” – but with 1 million followers on Instagram, 27-year-old Sean O’Donnell is a big social media star. Plus, he has a fun YouTube channel…

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Your next question might be – why should I care? Oh you will care, once you see his abs. (And, you know, he celebrated his birthday this week – so there’s that).

There you go:

1. A working man

https://www.instagram.com/p/B_bMDYUDwRe/

2. The thing with the shirt

https://www.instagram.com/p/BKCRpbZBGvt/?taken-by=theseanodonnell

3. Just sitting there

https://www.instagram.com/p/BJq2kOgBUVe/?taken-by=theseanodonnell

4. Nice arms, too!

https://www.instagram.com/p/BJ4p662hgMz/?taken-by=theseanodonnell

5. Pool time

https://www.instagram.com/p/BIdJGn-hBBf/?taken-by=theseanodonnell

6. Some more fun at the pool

https://www.instagram.com/p/BHuzi9qB2Op/?taken-by=theseanodonnell

7. Time to chop some wood

https://www.instagram.com/p/CQwTbimAPNe/

8. Gotta have a bathroom selfie!

https://www.instagram.com/p/CAWvc8-jGKT/

9. He spends a lot of time at the pool

https://www.instagram.com/p/Bu18yZQF0yN/

10. You have to work for your abs

https://www.instagram.com/p/BF_F7D2K7w-/?taken-by=theseanodonnell

11. Bed time?

https://www.instagram.com/p/BspSrF_FO77/

https://www.instagram.com/p/BBlkT6sq741/?taken-by=theseanodonnell

12. Chilling

https://www.instagram.com/p/Bicv_3SHiST/?taken-by=theseanodonnell

13. Over and out

https://www.instagram.com/p/BFFsXfFK7zt/

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