  Recently, we have proposed that the interaction between relativistic protons
resulting from Fermi first order acceleration in the superbubble of a stellar
OB association or in other nearby accelerator and ions residing in single
stellar winds of massive stars could lead to TeV sources without strong
counterparts at lower energies. Here we refine this analysis in several
directions. We study collective wind configurations produced by a number of
massive stars, and obtain densities and expansion velocities of the stellar
wind gas that is to be target of hadronic interactions. We study the expected
$\gamma$-ray emission from these regions, considering in an approximate way the
effect of cosmic ray modulation. We compute secondary particle production
(electrons from knock-on interactions and electrons and positrons from charged
pion decay), and solve the loss equation with ionization, synchrotron,
bremsstrahlung, inverse Compton, and expansion losses. We provide examples
where configurations can produce sources for GLAST satellite, and the
MAGIC/HESS/VERITAS telescopes in non-uniform ways, i.e., with or without the
corresponding counterparts. We show that in all cases we studied no EGRET
source is expected. Finally, we comment on HESS J1303-631 and on Cygnus OB 2
and Westerlund 1 as two associations where this scenario could be tested.
