  We study warm inflationary universe model on the BIon in thermal background.
The BIon is a configuration in flat space of a D-brane and a parallel
anti-D-brane connected by a wormhole with F-string charge. When the branes and
antibranes are well separated and the brane's spike is far from the antibrane's
spike, wormhole isn't formed however when two branes are close to each other,
they can be connected by a wormhole. In this condition, there exists many
channels for flowing energy from extra dimensions into our universe and
inflation may naturally occur in a warm region. We present a model that allows
all cosmological parameters like the scale factor $a$, the Hubble parameter $H$
and universe energy density depend on the shape function and temperature of
wormhole in transverse dimension between two branes. In our model, the
expansion of 4D universe is controlled by the thermal wormhole between branes
and ends up in Big-Rip singularity. We show that at this singularity, universe
would be destroyed and one black F-string formed. Finally, we test our model
against WMAP, Planck and BICEP2 data and obtain the ripping time. According to
experimental data, $N\simeq 50$ case leads to $n_{s}\simeq 0.96$, where
\emph{N} and $n_{s}$ are the number e-folds and the spectral index
respectively. This standard case may be found in $0.01 < R_{Tensor-scalar } <
0.3$, where $R_{Tensor-scalar }$ is the tensor-scalar ratio. At this point, the
finite time that Big Rip singularity occurs is $t_{rip}=29(Gyr)$ for WMAP and
Planck data and $t_{rip}=27.5(Gyr)$ for BICEP2 data. Comparing this time with
the time of Big Rip in brane-antibrane, we find that the wormhole in BIonic
system accelerates the destruction of the universe.
