From CRFG:
"The small flowers are blue, violet-purple or white marked with purple, and are similar in form to unopened potato flowers. The pepino dulce is deemed to be parthenocarpic but a much heavier crop results from self-pollination or cross-pollination. The plants will not set fruit until the night temperatures are above 65° F. "

So if it makes you feel better, go ahead 'n do it :)

Thank you so much for the information. I'm not keeping my greenhouse that warm so I suppose I won't see any fruit until summer. Bummer. I might try bringing one of the plants into the house to see if I succeed in obtaining fruit.

Thank you for answering my question.
~Tj~