  We propose the relativistic point particle models invariant under the bosonic
counterpart of SUSY. The particles move along the world lines in four
dimensional Minkowski space extended by $N$ commuting Weyl spinors. The models
provide after first quantization the non--Grassmann counterpart of chiral
superfields, satisfying Klein--Gordon equation. Free higher spin fields
obtained by expansions of such chiral superfields satisfy the N=2
Bargman--Wigner equations in massive case and Fierz--Pauli equations in
massless case.
