Article (look at the pics on the link):
[link to www.thesun.co.uk (secure)]

The LOL Surprise dolls – which stands for Little Outrageous Little Surprise – were launched in 2016.

...

The dolls’ website explains: “In a world where babies run everything, little Rockers rebel against nap time and Teacher's Pets become class presidents with ‘Free Pizza Fridays!’”

“In this world, all work is play and nothing is dull cuz it's all a lil' surprising and outrageous!”

...

One mom posted... that her three-year-old’s LOL Surprise Doll she got for Christmas reveals a “secret spy outfit” underneath, that she refers to as “secret lingerie.”

User tiffythebomb added: “And for whatever reason the nipples become extremely visible.

“The leopard print skimpy outfit she came with also makes her look like a hooker."

The outfit change is part of the "surprise" that's in the dolls' name.

...

What other controversy have the dolls faced?
The Sun previously reported that parents were outraged to discover the LOL Surprise boy dolls have genitals.

In keeping with the surprise element of the dolls, kids have no idea which gender doll they are getting until it is unboxed...