Mutant pear tomatoe

[Ook]

Found this on my yellow pear tomatoe bush today. (picture posted to alt.binaries.pictures.gardens). I count 8 lobes. Any ideas as to how this came to be? Also, will the seeds from this tomato be more likely to produce tomatos like this?

More pics of it can be found here:

[Ann]

"Ook" expounded:

I answered you over in the binary group, but forgot to mention you have a very sweet garden helper :o)

[Ook]

Thanks :-). She is 8 years old, a real drama queen. She won't eat most of the stuff that comes from the garden, but she loves to pick stuff, finds it fascinating.