(Cover) - EN Star Style - Jennifer Lopez says the thought of having to work out every day terrifies her.

The 41-year-old singer-and-actress has a body many women half her age envy, although the star is open about the fact that she works hard on maintaining her toned physique.

Jennifer trains with celebrity fitness guru Tracy Anderson, who has also famously worked with Gwyneth Paltrow and Madonna, and the beautiful songstress admits it can be very tough.

The thought of working out every day for the rest of my life terrifies me, she told Stylist.

Jennifer is a proud mother to three-year-old twins Emme and Max, her kids with singer husband Marc Anthony. Like most women, the star has noticed a change in her body shape since giving birth, and she says the difference is even noticeable in her muscles. However, the star still feels a lot prouder of her body nowadays than she did as a younger lady.

Having the twins has changed my body, she explained. It feels different on the inside as well as the outside. The texture of my muscles has even changed.

I feel like Ive hit my stride in my 40s. In my 20s I knew nothing about taking care of my body but now Im 41, I feel like this is the age. (C) Cover Media