Matthew McConaughey is one busy dad. The actor recently shot three films back-to-back, but when hes not working, his most beloved activity is leading story time with his three children.

My favorite thing is reading a five-minute story that turns into a never-ending story, McConaughey, 43, told PEOPLE at Sundays Cinema Society screening of Mud, sponsored by Fiji Water, in New York City. When its story time and I get to the end, theres no the end. The kids hate the end!
During story time, the former Sexiest Man Alive also creates his own imaginary tales for Levi, 4,5 , Vida, 3, and Livingston, 4 months. One original fable McConaughey tells includes a cheetah and a horse.

What you learn when you have kids is that they think four-dimensionally, says the doting dad. Ill tell them the story about a cheetah that ran and became friends with a horse and then a river came through and they were separated. Then Ill go, The end. But Levi replies, Well no, the cheetah grew wings and flew back over the river. Theres no ending, so its on and on and on!

His eldest child isnt just chatty in person - the Dallas Buyers Club star says his son likes talking on the phone when hes home with Camila in Austin as well.

Ill have a 74-minute phone call with him, says McConaughey. Its great and hes only 4!

- Paul Chi