The Sun
These cupcakes might not be safe for work. 
WTF, this has been escalating for years in bakery's. Those that specialise in cakes that are unusual have been around at least 30 years.
Some of these cakes run the gambit of mild suggestion to out and out pornography. Some speciality bakery's are owned just to service the gay comunity. A cake is a cake, it is the icing specialists that can turn a cake into a big butt with a big ass hole in the middle, even add hemorrhoids if requested. For the females, a cake with an anatomically correct VJ can cost more then a wedding cake.
First one I ever saw was at a birthday party for a male that turned 18. His mother for some reason ordered a cake with big boobs on the top. I felt so sorry for the son, he was so embarrassed. Mother thought this was oh so funny.
Today one can take a picture and some how incorporate it to the top of a cake. Possibility's of this are endless for both those that want a picture of parents on their wedding day at 50'th anniversary, to the obscene photos ordered by the dregs of society.
Could be that these cupcakes with signs of VD may in some way help people to recognise the signs in a partner and back off. The one of the big lips with sores is the best to my point of view. Unusual yes but rather interesting.