According to the Merriam Webster dictionary, one of the meanings of the word pray is "to seriously ask (someone) to do something". When you ask your friends to pray to God for you, essentially you are praying to them.
Websters has a definition of the english word used a few hundred years ago to convey a concept. According to Strongs concordance, pray:
to pray to God, i.e. supplicate, worship:—pray (X earnestly, for), make prayer
(this is ‘pray’ used in Matt 6, ‘teach us to pray’ and ‘pray like this’ when Jesus directed His followers to pray to His Father)
No. That just does not work.
Even the final sentence structure : "your friends to pray to God for you" makes clear that the prayer at issue here is a prayer to God. Incorporating a meaning that is not supported by scripture simply doesn't work. I will try to find time to go through a concordance, but exegesis will likely support my reading on this. The reading you suggest collapses a wholly secular meaning of prayer (any request or supplication) into the sacred meaning of prayer (communication with God in praise, worship, repentance, intervention, or guidance). The word is the same but the senses are entirely different.
That was lame.