either use a reverb on a send from your kick and play with the 'predelay' setting, dunno if that's what your after.

or as basil rush (i think) once posted, put the same kickdrum on a second channel and place them on the step before your kicks,

like:

channel 1 kick: K---K---K---K---

channel 2 kick: ---K---K---K---K

1--21--21--21--2 together; 1 standing for kick on ch1 and 2 standing for the kick on channel 2, easy as that.

so the channel 2 kick plays just before your channel 1 kick,

place a hipass filter on channel 2 and 'cutoff' somewhere in the range between 100 and 300 Hz (experiment, depends on yer kick sound), the higher, the less bassy your second kick will be.

this second method sounds more like what you were trying to achieve i suppose.